The RockShox Boxxer Select RC [paid link] is a high-performance suspension fork designed for downhill and aggressive mountain biking. This fork combines innovative technology with robust design to provide optimal handling and performance on challenging terrain. In this article, we will dive into the installation, maintenance, troubleshooting, and customization of the Boxxer Select RC [paid link], as well as compare it to similar models to help riders make an informed choice.

Installation of the Boxxer Select RC Suspension Fork

Installing the Boxxer Select RC requires careful attention to detail to ensure safety and optimal performance. Follow the steps below for a successful installation.

Tools Required

• 5mm Allen wrench [paid link]
• 6mm Allen wrench [paid link]
• 10mm wrench
• Torque wrench [paid link] (with specific torque settings)
• Suspension oil (specific to RockShox specifications)
• Shock pump
• Rags for cleaning

Installation Steps

1. Remove the old fork: Begin by removing the current fork from your bike. Loosen the fork’s axle, and then detach the fork from the headset and the steerer tube.
2. Prepare the Boxxer Select RC: Ensure that the fork is set to the appropriate travel length for your bike. The Boxxer Select RC offers adjustable travel, so it is crucial to adjust it to your preferred setting.
3. Install the fork into the headset: Slide the steerer tube of the Boxxer Select RC into the head tube of your frame. Align the fork with the front wheel and tighten the headset using a 6mm Allen wrench.
4. Install the axle: Place the front wheel in the fork dropouts. Use the 5mm Allen wrench to secure the axle, ensuring it is tight and the wheel is aligned.
5. Set the sag: Use a shock pump to adjust the air pressure in the fork according to the rider’s weight and preference. This will ensure proper sag for optimal performance.
6. Torque the components: Using a torque wrench [paid link], tighten all bolts to the manufacturer’s recommended torque settings to avoid over-tightening or under-tightening, which can affect performance and safety.
7. Test the fork: Once the fork is installed, perform a quick test ride to ensure it is functioning correctly. Check for smooth suspension movement and proper braking performance.

Maintenance of the Boxxer Select RC Suspension Fork

Maintaining the Boxxer Select RC is essential for prolonging its lifespan and ensuring it continues to perform at its best. Regular maintenance will help prevent issues such as poor damping performance, fork stiction, and oil leakage.

Regular Maintenance

• Clean the fork after every ride: Use a clean rag to wipe down the stanchions and remove dirt or debris that could cause damage to the fork seals.
• Check the air pressure: Regularly check and adjust the air pressure in the fork. This ensures the fork is operating at the correct sag for the rider’s weight and riding style.
• Lubricate the stanchions: Apply a small amount of suspension oil to the stanchions every few rides to reduce stiction and maintain smooth movement.
• Check for fork leakage: Inspect the fork for any oil leakage, particularly around the seals. If oil leakage is detected, it may be time to replace the seals or perform a lower leg service.

Annual Maintenance

• Lower leg service: Every 50-100 hours of riding, perform a lower leg service to replace the oil and inspect the seals. This helps maintain damping performance and reduces the risk of fork failure.
• Full rebuild: After about 200-300 hours of riding, or if the fork’s performance noticeably declines, a full rebuild is recommended. This involves disassembling the fork, replacing the seals, and cleaning the internal components. A full rebuild ensures that the fork continues to perform optimally over the long term.

Troubleshooting Common Set-Up Issues

Even the best suspension forks can encounter issues. Here are some common problems that riders may experience with the Boxxer Select RC and how to resolve them.

Fork Stiction

• Issue: The fork feels stiff or unresponsive, especially during the first few millimeters of travel.
• Solution: Clean the stanchions and lubricate them with suspension oil. If stiction persists, check the seals for wear and replace them if necessary.

Air Pressure Issues

• Issue: The fork feels too soft or too firm, even after adjusting the air pressure.
• Solution: Double-check the air pressure settings and ensure that the fork is set up according to the rider’s weight and preferred sag. If the fork continues to perform poorly, inspect the air spring for leaks or damage.

Damping Problems

• Issue: The fork feels either too harsh or too soft when compressing.
• Solution: Adjust the rebound and compression damping settings on the Boxxer Select RC to suit the terrain and riding style. If the problem persists, a full suspension service might be required to check for internal wear or fluid contamination.

Customization and Optimization for Better Performance

The Boxxer Select RC can be fine-tuned to match the rider’s specific needs, making it highly customizable for different types of riding and terrain.

Air Spring Adjustments

The Boxxer Select RC features an air spring that can be adjusted for travel and compression. Riders can modify the air pressure to customize the fork’s feel, ensuring the suspension is responsive and supportive.

• For aggressive downhill riding: Increase the air pressure for a firmer suspension that can handle bigger hits.
• For technical trails: Lower the air pressure slightly to allow for more compliance and comfort over smaller bumps and technical sections.

Rebound and Compression Damping

Adjusting the rebound and compression damping settings allows the rider to fine-tune the fork’s response to different terrain types. To improve performance:

• Increase compression damping for smoother, more controlled compression when hitting large obstacles.
• Decrease rebound damping to allow for quicker fork recovery after compression, especially when riding over rough terrain.

Comparison with Similar Models

While the Boxxer Select RC is designed for aggressive riders, it is important to consider how it compares to similar suspension forks from other brands.

Boxxer Select RC vs. Fox 40

• Performance: Both forks are designed for downhill riding, but the Fox 40 generally provides more progressive damping and is known for its superior bottom-out resistance.
• Weight: The Boxxer Select RC is slightly lighter than the Fox 40, making it a good option for riders looking for a bit more weight savings.
• Price: The Boxxer Select RC is typically more affordable than the Fox 40, making it an excellent value for riders who want high performance at a lower cost.

Boxxer Select RC vs. Marzocchi 380

• Performance: The Marzocchi 380 offers a similar range of adjustability to the Boxxer Select RC, but it is typically favored by riders who want a firmer, more direct feel on big hits.
• Customization: The Boxxer Select RC offers easier adjustments for air pressure, which may be a more accessible option for novice riders compared to the Marzocchi 380’s more advanced tuning options.

Understanding Compatibility with Other Drivetrain Components

The Boxxer Select RC suspension fork is designed to be compatible with a wide range of bike frames and drivetrain components. However, it is important to check the compatibility with the rest of your bike’s setup to ensure seamless integration.

Frame Compatibility

The Boxxer Select RC is compatible with most modern downhill frames that have a 1.5-inch head tube and a 20mm or 15mm through-axle. Always verify the axle standard of your bike before installation.

Drivetrain Integration

Since the fork itself does not directly affect drivetrain components, it is essential to ensure that your bike’s drivetrain is set up correctly to work with the fork. For instance, if you are using a 7-speed or 10-speed drivetrain, check the chainline and bottom bracket compatibility to avoid interference during aggressive riding.

By ensuring proper integration, the Boxxer Select RC will deliver smooth performance that complements your bike’s overall handling and responsiveness.